Mobile phone

Содержание

1. Mobile phone
2. Method calls with the use of portable
3. Before the invention of the cell phone
4. The mobile phone changed all of the
5. If they weren't wondering about someone's whereabouts
6. Mobile phones have made keeping in touch
7. Thanks for watching
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Method calls with the use of portable communication devices, was proposed in the mid-20th century Soviet engineer. Leonid Kupriyanovich, in 1963, was able to develop the first analogue mobile phone. Since

Слайды и текст этой презентации

Слайд 1Mobile phone

Слайд 2Method calls with the use of portable communication devices, was

proposed in the mid-20th century Soviet engineer. Leonid Kupriyanovich, in

1963, was able to develop the first analogue mobile phone. Since the model was experimental, convenience it did not have and needed improvements. Its weight was 3kg

Method calls with the use of portable communication devices, was proposed in the mid-20th century Soviet engineer.

Слайд 3Before the invention of the cell phone people went about

their daily lives in a constant state of questioning -

even if they didn't realize they were doing so. When a friend or family member went on vacation they wondered if the trip was made safely. It is doubtful that people even realized they were always in a state of questioning.

Before the invention of the cell phone people went about their daily lives in a constant state

Слайд 4The mobile phone changed all of the questioning. Now, mothers

could call and find out if their children made it

to their destination without any mishaps. Husbands could tell their wives when they were running late.

The mobile phone changed all of the questioning. Now, mothers could call and find out if their

Слайд 5If they weren't wondering about someone's whereabouts they were wishing

they had remembered to tell them something before they were

away from their office or home phone. Perhaps it was to stop and pick up the kids or to go by the bank because they loan officer called. Whatever the reason, before the invention of the cell phone, they would have to wait to see them and then send them back out to take care of the issue.

If they weren't wondering about someone's whereabouts they were wishing they had remembered to tell them something

Слайд 6Mobile phones have made keeping in touch across long distances

easier than ever before. For the most part, the cost

of calling across long distances is much less expensive using mobile phones than it is using land lines. Many cell phone plans have free long distance.